For plants to grow properly it is essential to feed them with right nutrients. There are a wide variety of hydroponic gardening supplies available, and they are well suited to the type of plants you are growing. The primary macro nutrients essential for plants are Nitrogen, Phosphorus, and Potassium. Secondary macro nutrients are calcium, magnesium, and sulfur. The essential micro nutrients are iron, manganese, boron, molybdenum, zinc, copper, and chlorine. In order to absorb all nutrients your hydroponic plants need to stay at its proper pH level. Majority of plants grow well in the pH range of 5.5 to 6.5.

Among these nutrients nitrogen is the most important nutrient for leaf and stem development. Plants need nitrogen to create proteins, enzymes, and growth regulators. Phosphorus is beneficial for root growth, flower development, photosynthesis, and the production of sugars. Without ample phosphorus you will see stunted growth and often have an abnormal dark-green color. Potassium, on the other hand, regulates and aids the intake of the other primary and secondary nutrients. It is required in variety of processes such as sugar production, protein synthesis, root growth, and helps to build disease resistance. Calcium is secondary macronutrients and essential for the growth of plant cells and roots. Insufficient supply of calcium results in curling and stunted growth of leaves and shoots. Magnesium plays an important role in light absorption and also helps to distribute phosphorus throughout the plant. Secondary macronutrient sulfur increases the effectiveness of phosphorus. Sulfur insufficiency results in yellowing of leaves.

Hydroponic nutrients are one of the most important components of a hydroponic growing system. Plants require right quantity of essential nutrients with proper hydroponic lighting system to produce their own food for healthy growth. Plants need a balanced diet of nutrients to grow strong and stay energetic.